Home / 13,126,398,631.82-18,114,430,997.75-7,185,951,133.82

Finding the Fourth Proportional to 13,126,398,631.82, 18,114,430,997.75 and 7,185,951,133.82

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Solution

The fourth proportional to 13,126,398,631.82, 18,114,430,997.75 and 7,185,951,133.82 is: 9,916,613,049.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126,398,631.82 : 18,114,430,997.75 = 7,185,951,133.82 : x
  2. Step 2: Convert to fraction form
    13,126,398,631.82/18,114,430,997.75 = 7,185,951,133.82/x
  3. Step 3: Cross multiply
    13,126,398,631.82x = 18,114,430,997.75 × 7,185,951,133.82
  4. Step 4: Simplify right side
    13,126,398,631.82x = 130,169,415,966,785,765,376
  5. Step 5: Solve for x
    x = 130,169,415,966,785,765,376/13,126,398,631.82
  6. Step 6: Final answer
    x = 9,916,613,049.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.